Well, there are no specific sports websites 'know more' about Chelsea. But you can trust Sky Sports one, who I think is the most reliable one among others. In some cases or rumours, they have a trusted sources, called sky sources, and if they write something like 'sky sources understand....' you know most likely it is confirmed true. I like to read match reports in Daily Mail, as they usually have a complete set of photos from a match with a quite decent resolution, especially if you've missed it. Visit Daily Mail for the images, just ignore the text, it is crap, lol